Is this your teacher?"teather"意为教师,老师.名词词性,为什么用"Is this"提问

This is[you your]teacher. This is your teacher?对your teacher提问 Is this your teacher ?回答,否定句 This is your teacher 改为复数句 Is this your ________activity book?(teacher) No.It's______(Jim) Is this your woman teacher改为复数形式急 Is this your English teacher?(做肯定回答）Is this your English teacher?(肯定和否定回答） Is this your teacher?teather意为教师,老师.名词词性,为什么用Is this提问 This is my teacher Who is your teacher? where is your teacher Your teacher is ok. Is this your()activity book?(teacher)括号里的词正确形式填空0Is this your()activity book?(teacher)whose textbooks()they?(be)No.It's().(Jim) 一道英语的填空帮讲下your和you的区别This is your teacher. 为什么不能用This is you teacher I'am your teacher (t or F)Is this right sentence? Is your English teacher（）? Who is your English teacher? what is your teacher like